Page 21: 'valves' corected to 'halves'. 'v' would seem to be a misprint for 'h'.
"The doors were generally in two halves and could be closed with locks,"
Page 48: 'candesticks' corrected to 'candlesticks'.
"Though the royal table might be lighted with valuable candlesticks of metal,..."
Page 82: "SEMPER FESTINA LENTE" = Hurry Slowly!
Page 121: 'musuem' corrected to 'museum'.
"... as in the example in the museum,..."
Page 140 et seq.: In the Index, the spaced double-quotes in the original and the .txt version have been converted to spaces to make a conventional nested index (which is easier to read).